Bailey Infi 90 INPCI01 User manual

®
®
Process Control and
Automation Solutions
from Elsag Bailey Group
96-620
Plant Loop to Computer Interface
(INPCI01)

WARNING notices as used in this instruction apply to hazards or unsafe practices that could result in
personal injury or death.
CAUTION notices apply to hazards or unsafe practices that could result in property damage.
NOTES highlight procedures and contain information that assists the operator in understanding the
information contained in this instruction.
WARNING
INSTRUCTION MANUALS
DO NOT INSTALL, MAINTAIN, OR OPERATE THIS EQUIPMENT WITHOUT READING, UNDERSTANDING,
AND FOLLOWING THE PROPER Elsag Bailey INSTRUCTIONS AND MANUALS; OTHERWISE, INJURY OR
DAMAGE MAY RESULT.
RADIO FREQUENCY INTERFERENCE
MOST ELECTRONIC EQUIPMENT IS INFLUENCED BY RADIO FREQUENCY INTERFERENCE (RFI). CAU-
TION SHOULD BE EXERCISED WITH REGARD TO THE USE OF PORTABLE COMMUNICATIONS EQUIP-
MENT IN THE AREA AROUND SUCH EQUIPMENT. PRUDENT PRACTICE DICTATES THAT SIGNS
SHOULD BE POSTED IN THE VICINITY OF THE EQUIPMENT CAUTIONING AGAINST THE USE OF POR-
TABLE COMMUNICATIONS EQUIPMENT.
POSSIBLE PROCESS UPSETS
MAINTENANCE MUST BE PERFORMED ONLY BY QUALIFIED PERSONNEL AND ONLY AFTER SECURING
EQUIPMENT CONTROLLED BY THIS PRODUCT. ADJUSTING OR REMOVING THIS PRODUCT WHILE IT IS
IN THE SYSTEM MAY UPSET THE PROCESS BEING CONTROLLED. SOME PROCESS UPSETS MAY
CAUSE INJURY OR DAMAGE.
AVERTISSEMENT
MANUELS D’OPÉRATION
NE PAS METTRE EN PLACE, RÉPARER OU FAIRE FONCTIONNER L’ÉQUIPEMENT SANS AVOIR LU,
COMPRIS ET SUIVI LES INSTRUCTIONS RÉGLEMENTAIRES DE Elsag Bailey. TOUTE NÉGLIGENCE À
CET ÉGARD POURRAIT ÊTRE UNE CAUSE D’ACCIDENT OU DE DÉFAILLANCE DU MATÉRIEL.
PERTURBATIONS PAR FRÉQUENCE RADIO
LA PLUPART DES ÉQUIPEMENTS ÉLECTRONIQUES SONT SENSIBLES AUX PERTURBATIONS PAR
FRÉQUENCE RADIO. DES PRÉCAUTIONS DEVRONT ÊTRE PRISES LORS DE L’UTILISATION DU MATÉ-
RIEL DE COMMUNICATION PORTATIF. LA PRUDENCE EXIGE QUE LES PRÉCAUTIONS À PRENDRE
DANS CE CAS SOIENT SIGNALÉES AUX ENDROITS VOULUS DANS VOTRE USINE.
PERTURBATIONS DU PROCÉDÉ
L’ENTRETIEN DOIT ÊTRE ASSURÉ PAR UNE PERSONNE QUALIFIÉE EN CONSIDÉRANT L’ASPECT
SÉCURITAIRE DES ÉQUIPEMENTS CONTRÔLÉS PAR CE PRODUIT. L’AJUSTEMENT ET/OU L’EXTRAC-
TION DE CE PRODUIT PEUT OCCASIONNER DES À-COUPS AU PROCÉDÉ CONTRÔLE LORSQU’IL EST
INSÉRÉ DANS UNE SYSTÈME ACTIF. CES À-COUPS PEUVENT ÉGALEMENT OCCASIONNER DES
BLESSURES OU DES DOMMAGES MATÉREILS.
NOTICE
The information contained in this document is subject to change without notice.
Elsag Bailey, its affiliates, employees, and agents, and the authors and contributors to this publication specif-
ically disclaim all liabilities and warranties, express and implied (including warranties of merchantability and
fitness for a particular purpose), for the accuracy, currency, completeness, and/or reliability of the information
contained herein and/or for the fitness for any particular use and/or for the performance of any material and/
or equipment selected in whole or part with the user of/or in reliance upon information contained herein.
Selection of materials and/or equipment is at the sole risk of the user of this publication.
This document contains proprietary information of Elsag Bailey, Elsag Bailey Process Automation, and
is issued in strict confidence. Its use, or reproduction for use, for the reverse engineering, development
or manufacture of hardware or software described herein is prohibited. No part of this document may be
photocopied or reproduced without the prior written consent of Elsag Bailey.

I-E96-620A
Preface
The Plant Loop to Computer Interface (INPCI01) enables two
way communication between a computer and INFI 90 PCUs on
a Plant Loop. The three INFI 90 modules that make up the
INPCI01 are: the Loop Interface Module (INLIM03), Point Table
Module (INPTM01), and Serial Interface Module (INSIM01).
This instruction explains INPCI01 features, specifications, and
operation. It also includes installation and troubleshooting
procedures for the interface.
The system engineer or technician using the INPCI01 should
read and understand this instruction before installing the
interface modules. In addition, a complete understanding of
the INFI 90 system is beneficial to the user.

I-E96-620A
®
List of Effective Pages
Total number of pages in this instruction is 40, consisting of the following:
Page No. Change Date
Preface Original
List of Effective Pages Original
iii through vii Original
1-1 through 1-5 Original
2-1 through 2-2 Original
3-1 through 3-11 Original
4-1 through 4-3 Original
5-1 through 5-5 Original
6-1 Original
7-1 Original
8-1 Original
A-1 through A-2 Original
B-1 through B-2 Original
When an update is received, insert the latest changed pages and dispose of the super-
seded pages.
NOTE: On an update page, the changed text or table is indicated by a vertical bar in the outer mar-
gin of the page adjacent to the changed area. A changed figure is indicated by a vertical bar in the
outer margin next to the figure caption. The date the update was prepared will appear beside the
page number.

vi I-E96-620A
Safety Summary
®
GENERAL
WARNINGS Equipment Environment
All components, whether in transportation, operation, or storage
must be in a noncorrosive environment.
Electrical Shock Hazard During Maintenance
Disconnect power or take precautions to insure that contact with
energized parts is avoided when servicing.
Special Handling
This module uses Electrostatic Sensitive Devices (ESD).
SPECIFIC
WARNINGS Disconnect power before installing dipshunts for slave modules on
the MMU backplane (slave expander bus). Failure to do so could
result in severe or fatal shock. (p. 3-10)
SPECIFIC
CAUTIONS Ensure that the cable end marked J1 is connected to P1 on the
NICL01, and J2 is connected to the LIM. Failure to do so could
result in module damage (see Figure B-1). (p. B-1)

I-E96-620A vii
Sommaire de Sécurité
AVERTISSEMENT
D'ORDRE
GENERAL
Envirmonent de l'dquipement
Ne pas soumettre les composants a une atmosphere corrosive lors
du transport, de l'entreposage ou de l'utilisation.
Rissques de chocs electriques lors de l'entretien
S'assurer de debrancher l'alimentation ou de prendre les precau-
tions necessaires a eviter tout contact avec des composants sours
tension lors de l'entretien.
Precautions de manutention
Ce module contient des composantes sensibles aux decharges
electro-statiques.
AVERTISSEMENT
D'ORDRE
SPECIFIQUE
Couper l'alimentation avant d'installer les dipshunts sur la plaque
arrlere du chassis de montage de modules (MMU). Toute negli-
gence a cet egard constitue un risque de choc pouvant entrainer
des blessures graves, voire moretlles. (p. 3-10)
ATTENTION D'ORDRE
SPECIFIQUE S'assuree que L'extremite identifiee par J1 est reliee a P1 du mod-
ule NICL01 et que J2 est reliee au module LIM. Senon, les modules
pauraient etre endommages (voir la figure B-1). (p. B-1)

Table of Contents
Page
I-E96-620A iii
SECTION 1 - INTRODUCTION....................................................................................................1-1
OVERVIEW ..................................................................................................................1-1
INTENDED USER.........................................................................................................1-2
INTERFACE DESCRIPTION ..........................................................................................1-2
Serial Interface Module ..........................................................................................1-2
Loop Interface Module............................................................................................1-2
Point Table Module ................................................................................................1-2
FEATURES...................................................................................................................1-2
INSTRUCTION CONTENT .............................................................................................1-3
HOW TO USE THIS MANUAL .......................................................................................1-3
GLOSSARY OF TERMS AND ABBREVIATIONS .............................................................1-4
REFERENCE DOCUMENTS..........................................................................................1-4
NOMENCLATURE ........................................................................................................1-5
SPECIFICATIONS.........................................................................................................1-5
SECTION 2 - DESCRIPTION AND OPERATION........................................................................2-1
INTRODUCTION...........................................................................................................2-1
INTERFACE OPERATION..............................................................................................2-1
Loop Interface Module INLIM03..............................................................................2-1
Point Table Module INPTM01 .................................................................................2-2
Serial Interface Module INSIM01 ............................................................................2-2
SECTION 3 - INSTALLATION.....................................................................................................3-1
INTRODUCTION...........................................................................................................3-1
SPECIAL HANDLING ....................................................................................................3-1
UNPACKING AND INSPECTION ....................................................................................3-1
INSIM01 SWITCH SETTINGS........................................................................................3-2
Option Switch (SW2) ..............................................................................................3-2
Port Option Switch Settings (SW3 and SW4) ...........................................................3-3
ROM Jumpers........................................................................................................3-4
Bypass Options (JP3 to JP6) ..................................................................................3-5
Communication Rate (JP9 and JP10) .....................................................................3-6
INLIM03 SWITCH SETTINGS ........................................................................................3-6
INPTM01 SWITCH SETTINGS .......................................................................................3-9
TERMINATION UNIT (MODULE) CONFIGURATION AND INSTALLATION .....................3-10
INSTALLING THE INTERFACE MODULES ..................................................................3-10
Installing the INSIM01 .........................................................................................3-10
Installing the INLIM03 and INPTM01....................................................................3-11
SECTION 4 - OPERATING PROCEDURES................................................................................4-1
INTRODUCTION...........................................................................................................4-1
INTERFACE START-UP ................................................................................................4-1
SERIAL INTERFACE MODULE LEDs ............................................................................4-1
LOOP INTERFACE MODULE LEDs ...............................................................................4-2
POINT TABLE MODULE LED........................................................................................4-3

iv I-E96-620A
Table of Contents (continued)
Page
®
SECTION 5 - TROUBLESHOOTING...........................................................................................5-1
INTRODUCTION .......................................................................................................... 5-1
EVENT AND ERROR COUNTERS ................................................................................. 5-1
MODULE STATUS BYTES ............................................................................................ 5-1
DIAGNOSTIC TERMINAL ............................................................................................. 5-1
ECHO TEST................................................................................................................. 5-2
INTERFACE CHECKOUT PROCEDURE........................................................................ 5-3
SECTION 6 - MAINTENANCE.....................................................................................................6-1
INTRODUCTION .......................................................................................................... 6-1
MAINTENANCE SCHEDULE ........................................................................................ 6-1
SECTION 7 - REPAIR/REPLACEMENT PROCEDURES...........................................................7-1
INTRODUCTION .......................................................................................................... 7-1
MODULE REPAIR/REPLACEMENT.............................................................................. 7-1
SECTION 8 - SUPPORT SERVICES...........................................................................................8-1
INTRODUCTION .......................................................................................................... 8-1
REPLACEMENT PARTS AND ORDERING INFORMATION ............................................. 8-1
TRAINING.................................................................................................................... 8-1
TECHNICAL DOCUMENTATION................................................................................... 8-1
APPENDIX A - TERMINATION UNIT (NTCL01) CONFIGURATION.........................................A-1
INTRODUCTION ..........................................................................................................A-1
APPENDIX B - TERMNATION MODULE (NICL01) CONFIGURATION....................................B-1
INTRODUCTION ..........................................................................................................B-1
List of Figures
No. Title Page
1-1. The INPCI01 within the INFI 90 Hierarchy ............................................................. 1-1
2-1. Functional Diagram of the INPCI01 Modules.......................................................... 2-1
3-1. Switch and Jumper Locations on the SIM .............................................................. 3-2
3-2. Jumper Settings for Communication Rates ........................................................... 3-6
3-3. LIM Switch Locations ............................................................................................ 3-6
3-4. PTM Switch (SW1) Location ................................................................................... 3-9
4-1. SIM Faceplate........................................................................................................ 4-1
4-2. SIM LED Sequence ................................................................................................ 4-2
4-3. LIM Faceplate........................................................................................................ 4-2
4-4. PTM Faceplate ....................................................................................................... 4-3
A-1. NTCL01 Termination Unit and Terminal Assignments ............................................A-2
B-1. Typical Twinax Cable Connection for the NICL01 ...................................................B-2

List of Tables
No. Title Page
I-E96-620A v
3-1. Option Switch (SW2) Settings.................................................................................3-2
3-2. Diagnostic Port Options (SW3) ...............................................................................3-3
3-3. Computer Port Options (SW4) ................................................................................3-4
3-4. ROM Compatibility (JP1 and JP2) ..........................................................................3-5
3-5. Bypass Options......................................................................................................3-5
3-6. LIM Event Counter Addresses (SW1) ......................................................................3-7
3-7. LIM Error Counter Addresses (SW1) .......................................................................3-7
3-8. LIM Node Address Setting (SW2) ............................................................................3-8
3-9. PTM Options (SW1) ................................................................................................3-9
4-1. PTM Status LEDs States ........................................................................................4-3
5-1. LIM Edge Connector P3 Pin Assignments ...............................................................5-5
5-2. PTM Edge Connector P1 Pin Assignments ..............................................................5-5
5-3. SIM Board Edge Connector P3 Pin Assignments .....................................................5-5
6-1. Maintenance Schedule ...........................................................................................6-1
A-1. NTCL01 Terminal Assignments ............................................................................. A-1
A-2. NTCL01 BNC Assignments .................................................................................... A-1
A-3. Jumper Settings and Cable Types ......................................................................... A-2
B-1. NICL01 Terminal Assignments .............................................................................. B-1
B-2. NICL01 BNC Assignments..................................................................................... B-1
B-3. Jumper Settings and Cable Types ......................................................................... B-2

OVERVIEW
I-E96-620A 1 - 1
SECTION 1 - INTRODUCTION
OVERVIEW
The Plant Loop to Computer Interface (INPCI01) is a communi-
cation interface that enables a computer to communicate with
modules on an INFI 90 Plant Loop. Three modules make up the
interface. The Loop Interface Module (INLIM03) handles the
module bus to Plant Loop communication transfer. The Point
Table Module (INPTM01) does report routing, interprets com-
mands to and from the computer and holds point tables (data
storage). The Serial Interface Module (INSIM01) provides an
RS-232-C interface to the computer. It translates information
from the computer and sends it to the PTM on the module bus.
Figure 1-1 shows an example of the INPCI01 within the INFI 90
hierarchy.
Figure 1-1. The INPCI01 within the INFI 90 Hierarchy
COMMUNICATION HIGHWAY (PLANT LOOP)
MODULE BUS
NTCL01
INLIM03 INPTM01 INSIM01
NTCU01
COMPUTER
T00406A
COAX OR
TWINAX CABLE
NKLM01
DMA CABLE
NKTU01
RS-232-C

INTRODUCTION
INTENDED USER
1 - 2 I-E96-620A
®
INTENDED USER
System engineers and technicians should read this manual
before installing and operating the INPCI01. Refer to the Table
of Contents to find specific information after the module is
operating.
INTERFACE DESCRIPTION
The Plant Loop to Computer Interface enables a host computer
to communicate with any node on the Plant Loop. INPCI01
software enables the computer to acquire data, do process
monitoring, load control strategies and configure modules.
This interface is made up of three INFI 90 Communication
Modules. The Serial Interface Module provides two RS-232-C
ports. The Loop Interface Module provides a serial interface to
the Plant Loop. The Point Table Module transfers information
from the Plant Loop to the module bus and coordinates inter-
action between the LIM and SIM.
Serial Interface Module
This module provides an RS-232-C communication port for a
host computer and an RS-232-C diagnostic port. By design,
this module acts as an RS-233-C type Z interchange, which is a
non-specified optional interchange. Jumpers on board the SIM
circuit board setup the use of signal lines on the RS-232-C port.
Loop Interface Module
The Loop Interface Module handles the Plant Loop communica-
tion protocol. This module buffers and processes all incoming
and outgoing messages. Messages are formatted with source/
destination addresses, header data, circulation count, message
class, data, and cyclic redundancy checks (CRC).
Point Table Module
This module joins the SIM and LIM and does report routing. It
also interprets messages from the Plant Loop, interprets com-
mands from the computer, and stores data values in point
tables.
FEATURES
This interface provides a plant operator with continuous com-
munication to and from the Plant Loop, through a computer.
The INPCI01 protects both the Infi 90 Plant Loop and computer
by buffering the two communication protocols. Through the
INPCI01 software, the computer can read station variables,
values of function blocks, and module status (through module
exception reports). The computer can set station variables and
mode, set logic switches, and report values to modules and
Operator Interface Stations (OIS) configured to read them.

INTRODUCTION
INSTRUCTION CONTENT
I-E96-620A 1 - 3
Process inputs and outputs are kept in point tables. The com-
puter can pass data by point number or bypass the point table
and demand data directly from any PCU. The computer can
poll the point table or request on points whose values have
changed. The user can load INFI 90 modules with control strat-
egies from the computer without affecting the point table.
INSTRUCTION CONTENT
This manual consists of eight sections.
Introduction Is an overview of the INPCI01. It contains module description,
features and specifications.
Description and
Operation Explains the module operation.
Installation Covers handling guidelines and explains how to set up the
user-configured switches before placing it in operation.
Operating Procedures Provides information about normal operation.
Troubleshooting Explains how to troubleshoot the module using error codes
and lists the corrective action.
Maintenance Contains a maintenance schedule for the slave module.
Repair/Replacement
Procedures Explains how to replace the PCI modules.
Support Services Explains the customer training Bailey Controls Company pro-
vides and information about ordering replacement parts.
HOW TO USE THIS MANUAL
Read this manual in sequence. It is important to become famil-
iar with the entire contents of this manual before using the
PCI. The organization of this manual enables the user to find
needed information quickly.
1. Read and do the steps in Section 3.
2. Read Section 4 thoroughly before powering up the station.
3. Refer to Section 5 if a problem occurs.
4. Refer to Section 6 for scheduled maintenance require-
ments.
5. Use Section 8 for a list of replacement parts and warranty
information.

INTRODUCTION
GLOSSARY OF TERMS AND ABBREVIATIONS
1 - 4 I-E96-620A
®
GLOSSARY OF TERMS AND ABBREVIATIONS
REFERENCE DOCUMENTS
The documents listed below provide additional information for
related hardware/software. Refer to these as needed.
Term Definition
DCE Data Circuit-Terminating Equipment - The termination point of a communication cir-
cuit such as a line driver or modem.
DTE Data Terminal Equipment - End-user machine of a communication circuit such as a
terminal or computer.
Checksum 1. The sum of bytes in a message except the checksum byte itself.
2. The sum of bytes in the firmware except the checksum byte itself. This sum is used
in firmware security checks.
CRC Cyclic Redundancy Check code - A unique code calculated from a data string and
compared every time that string is checked. If a mismatch is found, an error is gener-
ated. This code is at the end of every PCI message.
Exception Report Information update generated when a point change is greater than a specified signifi-
cant amount; abbreviated as XR.
Frame Valid string of bytes on the Plant Loop or INFI-NET ring.
MMU Module Mounting Unit - a card cage that provides electrical and communication sup-
port for INFI 90 modules.
PCI Plant Loop to Computer Interface (INPCI01/02) - A communication interface provid-
ing configuration and control of the Plant Loop through a host computer.
PCU Process Control Unit - rack type industrial cabinet that contains master, slave and
communication modules, and their communication paths.
Node Device(s) on the INFI 90/NETWORK 90 Plant Loop, Superloop or INFI-NET (maxi-
mum of 63 on Plant Loop, 250 on Superloop or INFI-NET). A node can be a Manage-
ment Command Systerm (MCS), Operator Interface Station (OIS), a Process Control
Unit (PCU) containing modules or any INFI-NET Communication Interface.
TM Termination Module - Provides input/output connection betweenplant equipment and
the INFI 90/NETWORK 90 process modules. The termination module is a flat circuit
board for panel mounting.
TU Termination Unit - Provides input/output connection between plant equipment and
the INFI 90/NETWORK 90 process modules. The termination unit is a flat circuit
board for panel mounitng.
Document No. Document
I-E96-110 Operator Interface Station
I-E96-611 Loop Interface/Bus Interface Module
I-E96-621 Plant Loop to Computer Interface (INPCI02)
I-E93-900-20 Function Code Applications Manual
I-E93-905-9 Enchanced CIU Programmer's Reference Manual
I-E93-911 Termination Unit Manual

INTRODUCTION
NOMENCLATURE
I-E96-620A 1 - 5
NOMENCLATURE
The related hardware is used with the Plant Loop to Computer
Interface.
SPECIFICATIONS
Nomenclature Description
IEMMU01/02 Module Mounting Unit
NFTP01 Field Termination Panel
NICL01 Communication Termination Module
NKLS03 NTCL01 to INLIM03 Cable
NKLS04 NICL01 to INLIM03 Cable
NKTU01 NTCU01 to INSIM01 Cable
NTCU01 Computer Interface Termination Unit
NTCL01 Communication Termination Unit
NTMU01 Termination Mounting Unit
GENERAL
Ports
Communication Rate
Point Capacity
Throughput
Two EIA Standard RS-232-C port on the INSIM01.
300; 1,200; 2,400; 9,600 or 19,200 baud (user-selectable).
511 points per INPCI01.
Effective 1-second scan class points based upon 150 exception reports per
second.
POWER REQUIREMENTS
INLIM03
INPTM01
INSIM01
+ 5 VDC at 2.0 A (10 Watts) nominal.
±15 VDC at 80 mA (1.2 Watts nominal.
+ 5 VDC at 1.0 A (5 Watts) nominal.
+ 15 VDC at 150 mA (2.25 Watts) nominal.
– 15 VDC at 120 mA (1.80 Watts) nominal.
+ 5 VDC at 1.92 A (10 Watts) maximun.
+ 15 VDC at 35 mA (0.53 Watts) maximum.
– 15 VDC at 28 mA (0.42 Watts) maximum.
ENVIRONMENTAL
Electromagnetic/Radio
Frequency Interference
Ambient Temperature
Relative Humidity
Atmospheric Pressure
Air Quality
Values are not available at this time.
Keep cabinet doors closed. Do not use communication equipment any
closer than 2 meters from the cabinet.
0oto 70oC (32oto 158oF)
0 to 95% up to 55oC (131oF) (non-condensing)
0 to 45% at 70oC (158oF) (non-condensing)
Sea level to 3 km. (1.86 miles)
Noncorrosive
CERTIFICATION All INPCI01 modules have been individually CSA certified for use as pro-
cess control equipment in an ordinary (non-hazardous) environment.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

INTRODUCTION
I-E96-620A 2 - 1
SECTION 2 - DESCRIPTION AND OPERATION
INTRODUCTION
The Plant Loop to Computer Interface (INPCI01) enables a host
computer to interact with all nodes on an INFI 90 Plant Loop.
The Plant Loop is a unidirectional serial data highway that all
nodes (and other data users) share. The PCI provides an
RS-232-C serial interface that links the Plant Loop to the host
computer. This section covers the functional operation of the
modules that make up the PCI.
INTERFACE OPERATION
The INPCI01 consists of three modules:
•Loop Interface Module (INLIM03)
•Point Table Module (INPTM01)
•Serial Interface Module (INSIM01)
These modules reside on a dedicated module bus. Figure 2-1 is
a block diagram showing how each module functions as part of
the interface.
Loop Interface Module INLIM03
The Loop Interface Module is the communication interface to
the Plant Loop. The LIM sends and receives messages from
Figure 2-1. Functional Diagram of the INPCI01 Modules
PLANT LOOP
TERMINATION
UNIT
HANDLE
PLANT LOOP
PROTOCOL
ACCEPT
MESSAGES
ADDRESSED
TO PCI
INTERPRET
LOOP
MESSAGES
POINT
TABLE
HANDLE
DIAGNOSTIC
PORT
REPORT
ROUTES
SPECS OF
POINTS
READ BY
COMPUTER
BUFFER OF ONE
COMMAND WHICH
REQUIRES
COMMUNICATION
WITH MODULES IN
ORDER TO REPLY
INTERPRET
COMMANDS CHECK
COMMAND
FORMAT
SEND
REPLIES
COMPUTER
INTERFACE
TERMINATION
UNIT
TO
PCU,
OIS,
PCI
LOOP
INTERFACE
MODULE (LIM)
SERIAL
INTERFACE
MODULE (SIM)
POINT TABLE
MODULE (PTM)
FORMAT
ERRORS
REREAD
REPLYCODE9
TO FIRST CIU
RESTART
T00405A
MODULE BUS
TO
DIAGNOSTIC
TERMINAL
TO
COMPUTER

DESCRIPTION AND OPERATION
INTERFACE OPERATION
2 - 2 I-E96-620A
®
other LIMs on the Plant Loop. LIMs can transmit and receive
messages simultaneously at any time. There is no loop master
or traffic director. LIM startup/shutdown is localized requiring
no interaction with other LIMs on the loop. Each LIM receives
all incoming messages and transmits a new stream of mes-
sages in a store and forward fashion to the next LIM.
The LIM can originate messages in its transmit buffer; how-
ever, messages usually come from the PTM. The LIM communi-
cates directly with the PTM. It has access to the PTM memory
through a direct memory access (DMA) cable. Besides sending
messages from the PTM, the LIM informs the PTM when it suc-
cessfully sends a message or discards a message destined for
off-line nodes. The LIM can count events and errors (refer to
Table 3-6 and 3-7) and display those counts on the faceplate
LEDs.
Point Table Module INPTM01
The PTM interprets commands from the computer. The PTM
can reply immediately to computer commands with informa-
tion it stores in its point table. It also sends Plant Loop mes-
sages to the LIM and alters the point table when the computer
wants to establish points not in the point table. Point tables
store process inputs and outputs. Initially, the computer must
establish a point in the table in terms of the PCU, module,
block number and point type. Thereafter, the computer and
interface pass data by point number. The computer may also
read any process data from a PCU without using the point
table.
The PTM interprets messages from the Plant Loop, stores any
information belonging in the point table, and sends those mes-
sages to the SIM. The PTM acts as a buffer so that the commu-
nication speed of the computer (simple point-to-point protocol)
doesn't interfere with the speed of the Plant Loop protocol.
Serial Interface Module INSIM01
This module directs the activity of the interface. It responds to
commands issued by the computer. The SIM enables the com-
puter to load INFI 90 modules with control strategies without
affecting the point table. The computer sets station variables,
mode and logic switches. It also reports values to modules and
OISs configured to read them.
During normal operation, the SIM checks the format of the
commands from the computer. It usually passes the com-
mands to the PTM and repeats the PTM's reply to the com-
puter. The SIM will reply directly to the computer without
consulting the PTM if it detects format errors. It handles the
diagnostic port by echoing every character received from the
computer and repeating every reply.

INTRODUCTION
I-E96-620A 3 - 1
SECTION 3 - INSTALLATION
INTRODUCTION
This section explains how to prepare the Plant Loop to Com-
puter Interface (INPCI01) modules for installation. It covers
handling procedures, switch settings for each module, termi-
nation unit/module and cable, and module installation. DO
NOT attempt to operate the PCI before reading and completing
the steps in this section.
SPECIAL HANDLING
The interface modules use CMOS devices. Follow the special
handling procedures below:
NOTE: Always use Bailey's Field Static Kit (P/N 198385A2 - con-
sists of wrist strap, ground cord assembly, and alligator clip) when
working with modules. The kit is designed to connect a technician
and the static dissipative work surface to the same ground point to
prevent damage to the modules by electrostatic discharge.
1. Keep the modules in the special anti-static bag until you
are ready to install them in the system. Save the bag for future
use.
2. Ground the anti-static bag before opening.
3. Verify that all devices connected to the modules are prop-
erly grounded before using them.
4. Avoid touching the circuitry when handling the modules.
UNPACKING AND INSPECTION
1. Examine the modules immediately to verify that no damage
has occurred in transit.
2. Notify the nearest Bailey Controls Sales Office of any dam-
age.
3. File a claim for any damage with the transportation com-
pany that handled the shipment.
4. Use the original packing material and/or container to store
the modules.
5. Store the modules in an environment of good air quality,
and free from temperature and moisture extremes.

INSTALLATION
INSIM01 SWITCH SETTINGS
3 - 2 I-E96-620A
®
INSIM01 SWITCH SETTINGS
The Serial Interface Module (INSIM01), shown in Figure 3-1,
has three user-configurable dipswitches and eight jumpers.
These dipswitches and jumpers set the SIM operating options
such as echo check, command and reply checksums, and port
data characteristics. Refer to Tables 3-1 through 3-5 for option
settings and set the dipswitches and jumpers for the desired
operating characteristics.
Option Switch (SW2)
SW2 is a five position dipswitch that determines module oper-
ating options of the module. Table 3-1 lists the SW2 option set-
tings. Record the SW2 settings in the space provided.
Figure 3-1. Switch and Jumper Locations on the SIM
T00404A
P2
SW1 SW2
SW4
SW3
P3
P1
RESET
SWITCH OPERATION OPTION SWITCH
COMPUTER PORT
OPTION SWITCH ROM COMPATIBILITY
DIAGNOSTIC PORT
OPTION SWITCH
OPEN
12345
OPEN
1234
OPEN
1234
123
JP1
32
4
1
JP2
2
3
1
JP6
2
3
1
JP5
2
3
1
JP4
2
3
1
JP3
JP9 JP10
BAUD RATE
SELECTION
COMPUTER
PORT
DIAGNOSTIC
PORT
Table 3-1. Option Switch (SW2) Settings
Position Setting Function User
Setting
10
1
ROM self-checking enabled.
ROM self-checking disabled.
2 Not used.
30
1
Normal Operation.
Echo check.
4 Not Used.
50
1
Command and reply checksums enabled.
Command and reply checksums dis-
abled.
0 = Closed (on)
1 = Open (off)

INSTALLATION
INSIM01 SWITCH SETTINGS
I-E96-620A 3 - 3
Port Option Switch Settings (SW3 and SW4)
SW3 and SW4 are four position dipswitches that determine the
data characteristics of the RS-232-C ports. Refer to Table 3-2
for diagnostic port data characteristic settings (SW3). Table 3-3
lists computer port data characteristics (SW4). Record the
switch settings in the space provided.
Table 3-2. Diagnostic Port Options (SW3)
DATA CHARACTERISTICS
SW3 Position Number of
Data Bits Number of Stop Bits Type of Parity
1234
000 7 2 Even
001 7 2 Odd
010 7 1 Even
011 7 1 Odd
100 8 2 No
101 8 1 No
110 8 1 Even
111 8 1 Odd
USER SETTING (SW3)
SW3 Position Number of
Data Bits Number of Stop Bits Type of Parity
1234
1 = Closed (on)
0 = Open (off)

INSTALLATION
INSIM01 SWITCH SETTINGS
3 - 4 I-E96-620A
®
ROM Jumpers
These jumpers enable the SIM to use ROM chips from different
manufacturers. These jumpers must remain in their factory set
position. Bailey service personnel will change them when
installing firmware upgrades. Table 3-4 lists J1 and J2 jumper
settings.
Table 3-3. Computer Port Options (SW4)
DATA CHARACTERISTICS
Option SW4 Position Number of
Data Bits Number of Stop Bits Type of Parity
1234
Binary 0
ASCII Text 1 000 7 2 Even
001 7 2 Odd
010 7 1 Even
011 7 1 Odd
100 8 2 No
101 8 1 No
110 8 1 Even
111 8 1 Odd
DATA CHARACTERISTICS
Option SW4 Position Number of
Data Bits Number of Stop Bits Type of Parity
1234
1 = Closed (on)
0 = Open (off)